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A2A Bridge
Bridges Google's Agent-to-Agent protocol with MCP, enabling agent discovery, registration, message sending, and task management through protocol translation bet
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About
Bridges Google's Agent-to-Agent protocol with MCP, enabling agent discovery, registration, message sending, and task management through protocol translation between A2A's JSON-RPC messaging and MCP's tool-based interface.
Example tools
Illustrative tool names — the actual tool set is defined by the server at runtime.
send_message
Post a message to a channel or user
list_channels
List channels the bot can access
search_messages
Search messages by query and date range
Screenshots
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Frequently Asked Questions
Common questions about A2A Bridge.
- What is the A2A Bridge MCP?
- The A2A Bridge MCP translates messages between Google's Agent-to-Agent (A2A) protocol and the Model Context Protocol (MCP). It enables agents using different protocols to discover each other, register, exchange messages, and manage tasks.
- How do I configure the A2A Bridge MCP in a client like Claude Desktop?
- Configuration in a client like Claude Desktop typically involves adding the MCP's stdio transport command. You would specify the executable path to the A2A Bridge server and any necessary arguments for its operation.
- Does the A2A Bridge MCP require API keys or other credentials?
- Based on the provided information, the A2A Bridge MCP uses 'none' for its authentication type. Therefore, it does not explicitly require API keys, OAuth, or other credentials for its direct operation.
- What are the primary capabilities of the A2A Bridge MCP?
- The A2A Bridge MCP facilitates agent discovery, registration, message sending, and task management. It achieves this by translating JSON-RPC messages from A2A agents into the tool-based interface expected by MCP.
- Is there a cost associated with using the A2A Bridge MCP?
- The A2A Bridge MCP itself is open-source, as indicated by its GitHub repository. Any costs would depend on the infrastructure where you deploy and run the server, and any related A2A services used.
- What is a key prerequisite for using the A2A Bridge MCP?
- A key prerequisite is having agents that utilize Google's Agent-to-Agent (A2A) protocol. The bridge's function is specifically to translate this protocol to the Model Context Protocol.
Install A2A Bridge
Claude Desktop
Add this to claude_desktop_config.json.
{
"mcpServers": {
"a2a-bridge": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-a2a-bridge"
]
}
}
}Cursor
Add this to ~/.cursor/mcp.json.
{
"mcpServers": {
"a2a-bridge": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-a2a-bridge"
]
}
}
}VS Code
Add this to your workspace settings.json.
{
"mcp.servers": {
"a2a-bridge": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-a2a-bridge"
]
}
}
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